Lunge low, twist hard, light the core up.
Rotate from the ribs and core, not just the arms, and keep your hips square.
The lunge loads your quads as the front knee bends deep, and the glutes control the hips and drive you back up. Adding the rotation over the front leg means your legs have to hold a stable base while the load swings across your body, so the balance demand goes way up compared to a plain lunge. It earns its place in athletic training where lower body strength and rotation happen at the same time, think field sports and everyday twisting under load.
Sink into the lunge first, then rotate toward the front leg once you are stable at the bottom. Untwist back to centre before you drive up, rotating mid descent is how people lose balance.
Toward the front leg. Turning over the lead thigh keeps your hips square and puts the challenge on your trunk, twisting away from it tends to pull the back knee and hip out of line.
Lighter than your normal lunge weight. The rotation is the point, and a bell that is too heavy turns the twist into an arm swing and wrecks your balance, so start light and earn the load.
